Ali Chumacero Los momentos críticos. Mexico City: Fondo de Cultura Económica, 1987. Colección Letras Mexicanas. First edition. Selection, prologue and bibliography by Miguel Angel Flores. 9681626656 xxviii/522 pages. Hardcover volume, measuring approximately 6" x 8.75", is like new. Dust jacket displays light shelfwear. Collection of essays by Mexican poet Ali Chumacero (1918-2010)